| One Border Countries | 0 | - | 4.98 | 469,971 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,835,463 |
| Countries by Borders #1 | 0 | - | 5.00 | 194,659 |
| Countries with the Longest Total Borders | 0 | - | 4.99 | 313,111 |
| Longest Border by Country #1 | 0 | - | 4.99 | 146,431 |
| Largest Countries with No Borders | 0 | - | 4.97 | 221,721 |
| Countries with Two Borders | 0 | - | 4.99 | 149,969 |
| Countries by Borders #2 | 0 | - | 4.96 | 136,511 |
| Big Countries Bordering Small Countries | 0 | - | 4.99 | 131,079 |
| Largest Countries Bordering Each Other | 0 | - | 4.99 | 115,527 |
| Biggest Countries Bordering the Pacific Ocean | 0 | - | 4.91 | 93,709 |
| Countries by Borders #3 | 0 | - | 4.98 | 98,180 |
| Bordering Countries Forming Words #1 | 0 | - | 4.92 | 75,791 |
| Bordering Countries Forming Words #2 | 0 | - | 4.97 | 32,781 |
| Longest Border by Country #2 | 0 | - | 4.95 | 121,270 |
| Countries with the Most Borders | 0 | - | 4.97 | 389,148 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 95,706 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 130,749 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 108,166 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 113,343 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 90,502 |
| Countries with the Shortest Total Borders | 0 | - | 4.94 | 104,047 |
| Bordering Countries Beginning With the Same Letter | 0 | - | 4.99 | 139,795 |
| Bordering Countries by HDI Difference | 0 | - | 4.88 | 52,006 |
| Countries of the World with a Borderless Map | 0 | - | 4.99 | 82,353 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 154,046 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 107,368 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.85 | 23,526 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,598,528 |
| Landlocked Countries | 0 | - | 4.99 | 422,166 |
| Smallest Countries Bordering Each Other | 0 | - | 4.61 | 92,911 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,780,149 |
| Sahara Desert Countries | 0 | - | 4.98 | 164,579 |
| Himalayan Countries | 0 | - | 4.94 | 138,835 |
| Andean Countries | 0 | - | 4.93 | 84,669 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 63,868 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 125,907 |
| Coffee Producing Countries | 0 | - | 4.83 | 67,497 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,844 |
| Danube Countries | 0 | - | 4.97 | 72,038 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 117,046 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,447 |
| Countries with the Worst Passports | 0 | - | 4.93 | 84,351 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 149,835 |
| European Landlocked Countries | 0 | - | 4.99 | 147,166 |
| Partially Recognized Countries | 0 | - | 4.98 | 106,683 |
| Countries with the Most Species | 0 | - | 4.99 | 103,265 |
| Countries 197 to 205 | 0 | - | 4.90 | 70,798 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,605 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,729 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,557 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,247 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,687 |
| Countries in the Alps | 0 | - | 4.87 | 118,236 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 101,237 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 107,067 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,675 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 96,619 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,544 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 95,961 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,697 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,514 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,194 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,869 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,667 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,540 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,243 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,493 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,546 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 118,958 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,332 |
| Countries that Host the Most Refugees | 0 | - | 4.96 | 64,036 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 46,119 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 244,044 |
| World Countries - Blind Typing | 0 | - | 5.00 | 108,185 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,249 |
| Largest Countries By Category | 0 | - | 4.97 | 158,249 |
| Countries by Countries | 0 | - | 4.96 | 63,260 |
| Country Flags with the Most White | 0 | - | 4.85 | 138,713 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,297 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 88,691 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 331,731 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 375,567 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 407,454 |
| Island Countries | 0 | - | 4.99 | 711,118 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,050,135 |
| Northernmost Countries | 0 | - | 4.99 | 362,050 |
| Countries of South America | 0 | - | 5.00 | 927,638 |
| Countries of Oceania | 0 | - | 5.00 | 1,057,352 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,877,955 |
| "Land" Countries | 0 | - | 4.98 | 337,401 |
| Which Country Does Not Border... | 0 | - | 4.78 | 93,712 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,384,179 |
| Bordering Countries by Clue #1 | 0 | - | 4.97 | 83,155 |
| Bordering Countries by Clue #2 | 0 | - | 4.95 | 87,471 |
| Walking Across Borders with Hints #1 | 0 | - | 4.95 | 109,068 |
| Countries Bordering Two or More Oceans | 0 | - | 4.22 | 123,153 |
| Borders of One Border Countries | 0 | - | 4.14 | 86,297 |
| Random Countries by Borders | 0 | - | 4.99 | 82,656 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 173,948 |
| Countries with Megacities | 0 | - | 4.99 | 264,666 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 199,777 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,496 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 138,046 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,568 |
| Countries by Official Language | 0 | - | 4.95 | 195,289 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 296,425 |
| Countries in their Native Language | 0 | - | 4.99 | 199,080 |
| Independence from Whom | 0 | - | 4.99 | 212,149 |
| Subdivisions by Country | 0 | - | 4.86 | 50,438 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 132,764 |
| Megadiverse Countries | 0 | - | 4.96 | 135,031 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 132,126 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,370 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 126,245 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,115 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 163,161 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,605 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 94,502 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,669 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 45,154 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 77,705 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,896 |
| Countries Furthest from the United States | 0 | - | 4.94 | 89,219 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,977 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 75,364 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,506 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 111,242 |
| World Map Quiz | 0 | - | 4.81 | 65,119 |
| Southernmost Countries of the World | 0 | - | 4.99 | 228,126 |
| Countries by Inland Surface Water | 0 | - | 4.93 | 105,306 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 123,016 |
| Countries With the Most Languages | 0 | - | 4.90 | 202,253 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,917 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 94,028 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 99,319 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,450 |
| Tallest Countries North to South | 0 | - | 4.83 | 120,587 |
| Widest Countries East to West | 0 | - | 4.92 | 129,667 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,462 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 186,399 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 98,126 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 94,780 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 148,614 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,884 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,379 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,801 |
| Countries with Double Letters | 0 | - | 4.96 | 96,264 |
| Countries that End in N | 0 | - | 4.95 | 171,156 |
| Countries with Five Letters | 0 | - | 4.96 | 282,545 |
| Countries with Six Letters | 0 | - | 4.94 | 213,589 |
| Countries with W | 0 | - | 4.97 | 160,344 |
| Countries with Z | 0 | - | 4.98 | 291,497 |
| Countries with Letters Missing | 0 | - | 4.96 | 186,724 |
| Countries That End in U | 0 | - | 4.95 | 120,863 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 134,482 |
| Countries that End in O | 0 | - | 4.92 | 159,518 |
| Countries that End in R | 0 | - | 4.87 | 118,975 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,735 |
| Countries Ending in "IA" | 0 | - | 4.99 | 209,128 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 170,707 |
| Countries by Last Two Letters | 0 | - | 4.85 | 135,483 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 142,408 |
| Countries That End in Y | 0 | - | 4.91 | 185,881 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 197,939 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 152,871 |
| Countries that End in I | 0 | - | 4.94 | 135,102 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 184,129 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,826 |
| Countries That End in NIA | 0 | - | 4.92 | 109,793 |
| Countries That End in BIA | 0 | - | 4.93 | 149,223 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 167,133 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 119,437 |
| Countries That End in RIA | 0 | - | 4.93 | 126,811 |
| Most Common Words in Official Country Names | 0 | - | 4.86 | 111,028 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 227,649 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 133,720 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 126,145 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 91,696 |
| Add A Letter - Make a Country | 0 | - | 4.82 | 74,582 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 53,036 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 103,447 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 125,531 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 49,426 |
| Countries Containing Two or More Words | 0 | - | 4.97 | 53,991 |
| Countries that End in L | 0 | - | 4.94 | 156,848 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 215,838 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.98 | 85,269 |
| City to Country Quiz #1 | 0 | - | 4.97 | 156,033 |
| City to Country Quiz #3 | 0 | - | 4.88 | 118,961 |
| 45 European Countries, 45 Cities | 0 | - | 4.95 | 79,003 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 249,765 |
| Five Poorest Countries by Continent | 0 | - | 4.93 | 200,672 |
| Five Least Populated Countries by Continent | 0 | - | 4.95 | 143,002 |
| Five Smallest Countries by Continent | 0 | - | 4.98 | 163,553 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.94 | 225,459 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.98 | 152,873 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.89 | 71,105 |
| Top 10 Countries in Nuclear Power Production | 0 | - | 4.95 | 86,709 |
| 10 Northernmost Countries That Start with S | 0 | - | 4.94 | 62,878 |
